Statistical question using R in psychology project

A researcher conducts an experiment studying the impact of caffeine on statistics performance. The two conditions are Rooibos tea (control) and Coffee (treatment). Treatment is applied through random assigment 30 minutes before the statistics midterm and the dependent variable is performance on the statistics midterm (out of 100 points). Students also reported, on a 1–9 point scale their intrinsic motivation to learn statistics at the beginning of the term. The data are below. 1. What is the standardized mean difference between the two groups on Midterm performance, adjusting for motivation? (2 points) 2. What is the β between motivation and midterm performance (with group in the analysis)? (2 points) 3. What is the 95% CI for these two standardized effect size estimates? Calculate the CI for d under standard statistical theory (e.g., using fabs) as well as through resampling. Just use resampling for β. For both resampled CIs, use the BCa confidence interval. (3 points) 4. Write a short APA-style paragraph where you summarize the results of this experiment. (3 points)